>> My option (I'll probably build it in to launch Terminal ready for you instead of just following a HOWTO) will not even use the wineprefix in the wrapper, it would just default to the normal ~/.wine. It would be nothing more than letting the people open Terminal with a pre-compiled Wine build ready to go and nothing more. There can be a note about making sure Gecko is installed... This would only be so people don't have to try to compile anything themselves just to test if its a Wine or Wineskin problem.
That sounds good, but you need more than just a note about gecko. It needs to be installed to ~/.wine by default.